Balancing volumetric and gravimetric uptake in highly porous materials for clean energy

Zhijie Chen, Penghao Li, Ryther Anderson, Xingjie Wang, Xuan Zhang, Lee Robison, Louis R. Redfern, Shinya Moribe, Timur Islamoglu, Diego A. Gómez-Gualdrón, Taner Yildirim, J. Fraser Stoddart, Omar K. Farha*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A huge challenge facing scientists is the development of adsorbent materials that exhibit ultrahigh porosity but maintain balance between gravimetric and volumetric surface areas for the onboard storage of hydrogen and methane gas-alternatives to conventional fossil fuels. Here we report the simulationmotivated synthesis of ultraporous metal-organic frameworks (MOFs) based on metal trinuclear clusters, namely, NU-1501-M (M = Al or Fe). Relative to other ultraporous MOFs, NU-1501-Al exhibits concurrently a high gravimetric Brunauer-Emmett-Teller (BET) area of 7310 m2 g-1 and a volumetric BET area of 2060 m2 cm-3 while satisfying the four BET consistency criteria. The high porosity and surface area of this MOF yielded impressive gravimetric and volumetric storage performances for hydrogen and methane: NU-1501-Al surpasses the gravimetric methane storage U.S. Department of Energy target (0.5 g g-1) with an uptake of 0.66 g g-1 [262 cm3 (standard temperature and pressure, STP) cm-3] at 100 bar/270 K and a 5- to 100-bar working capacity of 0.60 g g-1 [238 cm3 (STP) cm-3] at 270 K; it also shows one of the best deliverable hydrogen capacities (14.0 weight %, 46.2 g liter-1) under a combined temperature and pressure swing (77 K/100 bar → 160 K/5 bar).

Original languageEnglish (US)
Pages (from-to)297-303
Number of pages7
JournalScience
Volume368
Issue number6488
DOIs
StatePublished - Apr 17 2020

ASJC Scopus subject areas

  • General

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    Chen, Z., Li, P., Anderson, R., Wang, X., Zhang, X., Robison, L., Redfern, L. R., Moribe, S., Islamoglu, T., Gómez-Gualdrón, D. A., Yildirim, T., Stoddart, J. F., & Farha, O. K. (2020). Balancing volumetric and gravimetric uptake in highly porous materials for clean energy. Science, 368(6488), 297-303. https://doi.org/10.1126/science.aaz8881